Product Description:

The 43.SM.200-64BJ is a three-phase synchronous servo motor from KEB that belongs to the SM Synchronous Servo Motors series. It serves as a compact rotary actuator that delivers repeatable speed and position control when paired with a matched inverter in industrial automation lines. By combining magnetic torque production with high-resolution feedback, the motor supports coordinated axis movements required in material handling, printing, and assembly equipment.

The motor uses a self-cooling design, so heat is removed through natural convection without auxiliary fans or liquid channels. Position data are transferred over the Heidenhain EnDat Multiturn protocol provided by the integrated EQI 1329 encoder, giving the drive immediate absolute position information after power-up. With windings optimized for a link voltage of 330 V for 400 V class drives, the unit reaches a nominal mechanical speed of 6000 rpm while maintaining stable magnetic flux. These electrical characteristics allow the motor to fit high-speed axes that must accelerate quickly while staying within standard inverter voltage limits.

Mechanical integration is simplified by the B5 mounting flange that matches 1FT5 patterns, and the turnable angular flange connectors allow power and feedback cables to exit in the required direction. The power interface follows a connector-to-connector layout, so both motor phases and sensor signals use quick-lock plug couplings. Shaft sealing is reinforced by an IP64 gland, while the overall housing carries an IP65 ingress rating that helps protect the motor from dust and low-pressure water jets. Start-up and overload surveillance are handled by a PTC resistor embedded in the stator. Because the unit is supplied without a brake, any holding torque during power-off must be provided by the machine mechanics or the drive. The encoder delivers 32 Inc of electrical interpolation per revolution, supporting smooth torque generation across the electrical cycle.